398530696 has 8 divisors (see below), whose sum is σ = 747245070. Its totient is φ = 199265344.

The previous prime is 398530679. The next prime is 398530721. The reversal of 398530696 is 696035893.

It can be written as a sum of positive squares in only one way, i.e., 277222500 + 121308196 = 16650^2 + 11014^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24908161 + ... + 24908176.

Almost surely, 2^398530696 is an apocalyptic number.

It is an amenable number.

398530696 is a deficient number, since it is larger than the sum of its proper divisors (348714374).

398530696 is a wasteful number, since it uses less digits than its factorization.

398530696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49816343 (or 49816339 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 398530696 is about 19963.2336058065. The cubic root of 398530696 is about 735.9030324756.

The spelling of 398530696 in words is "three hundred ninety-eight million, five hundred thirty thousand, six hundred ninety-six".